I've herd of this place so it is a real place. Gotta check it out.
Seriously worth the trip. I always drive past the building when I'm headed to Columbus. It's just outside of Butler off the the left (heading west) and has no identifying signage to say it's a gun store. It's just called Butler Automotive. And you will think you've been had when you walk in the door. Go to the counter at the back wall and turn to the right- there's the gun store.
Last time I was there, they had more high end shotguns than I'd ever seen in one place.